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Contains:  NGC 3077, M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031, NGC 2976
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M81 and M82 - 2018, 


            Peter Folkesson
M81 and M82 - 2018

M81 and M82 - 2018

Technical card

Resolution: 4539x3399

Dates:March 18, 2018March 20, 2018

Baader Blue 1.25" Filter: 40x90" (gain: 200.00) -20C bin 1x1
Baader Green 1.25" Filter: 20x90" (gain: 200.00) -20C bin 1x1
IDAS LPS D1: 51x60" (gain: 200.00) -20C bin 1x1
IDAS LPS D1: 127x90" (gain: 200.00) -20C bin 1x1
Baader Red 1.25" Filter: 40x90" (gain: 200.00) -20C bin 1x1

Integration: 6.5 hours

Darks: ~100

Flats: ~100

Bias: ~200

Avg. Moon age: 1.97 days

Avg. Moon phase: 5.38%

Bortle Dark-Sky Scale: 5.00

Temperature: -5.00 job: 2029750

RA center: 148.825 degrees

DEC center: 68.953 degrees

Pixel scale: 1.906 arcsec/pixel

Orientation: 271.664 degrees

Field radius: 1.501 degrees

Locations: Backyard, Borås, Sweden

Data source: Backyard


2018-03-18 20:00-03:00
Few high clouds, little wind, no moon, ground snow, 50% humidity, -5 degrees C

2018-03-19 21:30-03:30
Cloudy followed by high clouds, no wind, no moon, ground snow, 90% humidity, -3 degrees C
Decided not to use the data captured this night due too poor weather conditions

2018-03-20 20:00-00:00
Clear followed by clouds, no wind, setting moon, ground snow, 70% humidity, -4 degrees C



Peter Folkesson
License: None (All rights reserved)

Sky plot

Sky plot


M81 and M82 - 2018, 


            Peter Folkesson